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wasm readPoly and some debugging

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This commit is contained in:
Stewart Allen 2021-06-22 21:33:46 -04:00
commit c25bab8b2f
3 changed files with 80 additions and 30 deletions
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43
wasm/kiri-geo.cpp
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@ -8,11 +8,15 @@ typedef unsigned short Uint16;
typedef unsigned int Uint32;
typedef int int32;
using namespace ClipperLib;
Uint8 *mem = 0;
const Uint8 debug = 0;
extern "C" {
extern void polygon(Uint32 points, Uint32 inners);
extern void point(Uint32 x, Uint32 y);
extern void abc(Uint32 a, Uint32 b, Uint32 c);
}
struct length16 {
@ -34,30 +38,53 @@ void mem_clr(Uint32 loc) {
free((void *)loc);
}
Uint32 readPolys(Paths paths, Uint32 pos, Uint32 count) {
Uint32 poly = 0;
if (debug) abc(poly, count, pos);
while (count > 0) {
struct length16 *ls = (struct length16 *)(mem + pos);
Uint16 points = ls->length;
if (debug) polygon(points, 0);
pos += 2;
while (points-- > 0) {
struct point32 *ip = (struct point32 *)(mem + pos);
pos += 8;
paths[poly] << IntPoint(ip->x, ip->y);
if (debug) point(ip->x, ip->y);
}
poly++;
count--;
}
if (debug) abc(poly, count, pos);
return pos;
}
__attribute__ ((export_name("poly_offset")))
Uint32 poly_offset(Uint32 memat, Uint32 polys, float offset) {
using namespace ClipperLib;
Paths ins(polys);
Paths outs;
Uint32 pos = memat;
Uint16 poly = 0;
// pos = readPolys(ins, pos, polys);
while (poly < polys) {
struct length16 *ls = (struct length16 *)(mem + pos);
Uint16 points = ls->length;
// polygon(points, 0);
if (debug) polygon(points, 0);
pos += 2;
while (points-- > 0) {
struct point32 *ip = (struct point32 *)(mem + pos);
pos += 8;
ins[poly] << IntPoint(ip->x, ip->y);
// point(ip->x, ip->y);
if (debug) point(ip->x, ip->y);
}
poly++;
}
if (debug) abc(memat, pos, memat - pos);
// clean and simplify polygons
// Paths cleans, simples;
// CleanPolygons(ins, cleans, 250);
@ -71,12 +98,12 @@ Uint32 poly_offset(Uint32 memat, Uint32 polys, float offset) {
Uint32 resat = pos;
for (Path po : outs) {
// polygon(po.size(), 1);
if (debug) polygon(po.size(), 1);
struct length16 *ls = (struct length16 *)(mem + pos);
ls->length = po.size();
pos += 2;
for (IntPoint pt : po) {
// point(pt.X, pt.Y);
if (debug) point(pt.X, pt.Y);
struct point32 *ip = (struct point32 *)(mem + pos);
ip->x = (int)pt.X;
ip->y = (int)pt.Y;
@ -96,8 +123,6 @@ Uint32 poly_offset(Uint32 memat, Uint32 polys, float offset) {
__attribute__ ((export_name("poly_union")))
Uint32 poly_union(Uint32 memat, Uint32 polys, float offset) {
using namespace ClipperLib;
Paths ins(polys);
Paths outs;
Uint32 pos = memat;
@ -147,8 +172,6 @@ Uint32 poly_union(Uint32 memat, Uint32 polys, float offset) {
__attribute__ ((export_name("poly_diff")))
Uint32 poly_diff(Uint32 memat, Uint32 polysA, Uint32 polysB, float offset) {
using namespace ClipperLib;
Paths inA(polysA);
Paths inB(polysB);
Paths outs;